Rink.



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31111:. 7 I APPLIGATION FILED JUNE 1 913.

Patnterl Apr. 23, 1914.

ITED STATS r EDUARD ARNOLD, 0F BERLIN, GERMANY.

RINK.

Application filed June 20, 1913. Serial No. 774,944

To all whom it may concern.

Be it known that I, EDUARD ARNOLD, a

subject of the King of Prussia, residing at Berlin Germany, have invented a new and, useful Improvement in Rinks, of which the following is a specification;

This invention relates to rinks or similar sliding. surfaces or floors, both portable and fixed. Y

Rinks I or similar sliding surfaces" of flcorswhich will hereinafter be termed rinksof the kind to which the present invention relates, comprise an upper layer or surface of crystalline salts below which is arranged a layer. of porous material' and means below, thelatter for keeping it moist.

The present invention aims at the provision of a rink having means capable of The accom an in drawin re resents a cross section of partof a rink-floor embody ing my invention;

The rink or sliding surface illustrated, comprises three layers, namely, a layer a consisting of water-attracting substances such for instance as magnesium chlorid, a

Specification of Letters Patent.

Patented Apr. 28, 1914.

. second layer b consisting of a mass capable of taking up the water, such for instance as paper material, porous minerals, and the like, and a third layer 0 composed of crystalline salts and constituting the sliding or running surface proper. When the air is too wet theilayer b sucks-up the excessive moisture from the crystalline layer a and gives upthis moisture to a certain degree to the layer a consisting of hygroscopic or water-attracting materials. If, however, the

external air too dry, the layer 6 on the other hand sucks up water f'romthe layer a and gives this'water to the running or slid ing layer '0. in order to keep constant the quality of surface favorable, to sliding.

In order to maintain the running and sliding surface proper taut in all cases, and at the same t me to increase its smoothness, the crystalline masses forimng same, such as carbonates and sulfates of sodium in fused condition, may have talc added thereto so as to fill out any crevices that may occur in said surface. This use of talc is not claimed as new but is mentioned as a means of improving the surface in cases where it is desirable.

I claim:

A rink comprising a to layer of crystalline salts, a lower absor ent layer, and a hygroscopic bottom layer.

- EDUARD ARNOLD.

Witnesses:

WVOLDEMAR HAUPT, HENRY HAsrER. 

